Mercedes W124

since 1985-1995 of release

Repair and car operation

W124 Mercedes
+ Governing bodies and control devices
+ 2. Maintenance (diesel engines)
+ 4. Repair of 6-cylinder petrol SOHC engines
+ 5. Repair of 6-cylinder petrol DOHC engines
+ 6. Repair of the diesel engine established in the car
+ 7. Major maintenance of engines
+ 10. System of injection of BOSCH CIS-E fuel (KE-JETRONIC)
+ 11. System of injection of BOSCH HFM fuel
+ 12. Fuel system of diesel engines
+ 13. Fuel system of diesel engines
+ 15. System of ignition of 4-cylinder petrol engines
+ 16. System of ignition of four-cylinder petrol engines
+ 19. Mechanical transmission
+ 20. Automatic transmission
   21.2. General information
   21.3. Oil replacement in reverse main gear
   21.4. Removal and installation of reverse main gear
   21.5. Replacement of sealing rings of reverse main gear
   21.6. Power shafts
   21.7. Replacement of protective covers of CV JOINTS of a power shaft
   21.8. Driveshaft
   21.9. Rubber elastic coupling of the driveshaft
   21.10. Central bearing of the driveshaft
   21.11. Universal hinge of the driveshaft

21.2. General information

Connection of two parts of the driveshaft is carried out by connection such as the shlitsevy sliding coupling. Such connection allows to move a back part of the driveshaft along an axis therefore the total length of the driveshaft changes. The driveshaft incorporates to flanges of a transmission and reverse main gear via rubber elastic couplings. Between the forward rubber coupling and the driveshaft the quencher of krutilny fluctuations is established. The case of the central bearing of the driveshaft fastens bolts to the car bottom. In back section of the driveshaft behind the central bearing the universal hinge which allows to transfer a torque at an angle is established.

Into structure of the main reverse gear enters: leading gear wheel, cogwheel, differential and target flanges. On a shaft of a leading gear wheel the flange which incorporates the driveshaft via the elastic rubber coupling is established. The cogwheel fastens bolts to a box of differential and transfers a torque through semi-axial gear wheels and flanges to power shafts. The differential provides rotation of driving wheels on the different parties of the car with different speeds. It is necessary for passing of turns when the wheel on inside of turn rotates in much smaller radius, than a wheel on the outer side of turn. In other words, the wheel on inside of turn passes in a certain interval of time shorter way, than a wheel on the outer side of turn therefore also speed of its rotation should be less. However in practice of a wheel seldom rotate with precisely identical speed, even at movement on a direct road as even the small difference of diameters of wheels or passing of wheels of one party on a rough surface cause a difference in speeds which compensation needs differential.

Power shafts transfer a torque from target flanges of reverse main gear to back wheels. From two parties of each power shaft hinges of equal angular speeds are established. Internal hinges of equal angular speeds fasten bolts to target flanges of reverse main gear, and external hinges are established in grooves of a nave of a wheel and fasten a nut.

For repair of reverse main gear application of a number of special tools therefore this work is necessary for carrying out at service station is necessary.